<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<div id="app">
  <p :style="{fontSize: arg1,backgroundColor: arg2}">{{message}}</p>
</div>


<script src="../js/vue.js"></script>
<script>
  // 1.创建Vue的实例对象
  const app = Vue.createApp({
    data(){
      return {
        message: '你好Vue3！',
        arg1: '50px',
        arg2: 'red'
      }
    }
  }).mount('#app');
</script>

</body>
</html>